package com.kaigejava.juc.concurrentcontainers;

import java.util.*;
import java.util.concurrent.CopyOnWriteArrayList;

/**
 * @author kaigejava
 */
public class HashtableTest {
    public static void main(String[] args) {
        Map map = new Hashtable();
        ArrayList list = new ArrayList();
        Vector vectory = new Vector<>();
        vectory.add(1);
        Hashtable hashtable = new Hashtable();
        hashtable.put("","");
        Properties properties = new Properties();

        CopyOnWriteArrayList list2 = new CopyOnWriteArrayList();
    }
}
